<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
<head>
  <meta charset="UTF-8">
  <title>home2</title>
</head>
<body>
<div>
  this is home2 home2 home2....
  <div th:text="${app}">
  </div>
</div>
</body>
</html>